Table 1.
Rainfall and total water supply (irrigation plus rainfall) of the four rice varieties grown under two water management treatments and two N rates at IRRI farm in the three consecutive seasons.
| N | Irrigation (mm) | Rainfall | Total water input (mm) | Reduction | ||
|---|---|---|---|---|---|---|
| AWD | CF | AWD | CF | |||
| 2009 DS | ||||||
| LN | 517 | 606 | 349 | 866 | 955 | 9.3 |
| HN | 537 | 584 | 349 | 886 | 933 | 5.0 |
| 2009 WS | ||||||
| LN | 107 | 168 | 1079 | 1186 | 1247 | 4.9 |
| HN | 102 | 172 | 1079 | 1181 | 1251 | 5.6 |
| 2010 DS | ||||||
| LN | 753 | 1024 | 92 | 845 | 1116 | 24.3 |
| HN | 729 | 998 | 92 | 821 | 1090 | 24.7 |
Data are the means across four varieties. Variety had insignificant effect on the amount of water supply.